Sunday, January 10th, 2021 AT 4:32 PM
Starting out on a cold morning I get this howling noise (only way I can describe it). It starts out low and goes higher and then goes back down slowly, it may do this a couple to several times until it finally stops. I am guessing until it gets warm. This morning it it kept going for a while. It doesn't seem to interfere with performance. Not knowing what it might be it concerns me.